Self and daniel m



(N'o Model.) Jl A. CQULTAUS.

SPRING ARMORED HOSE PIPE.

No. 325,591. Patented Sept. l, 1885 I WITNESSES i ZIOR ATTORNEYS.

, Io for the pnrposeef UNITEDY Sterns errent ninna JosEPn ALLEN coULTAUs, or nnooKLYN, NEW YORK, Assienoa To HIM-,

snLr AND DANIEL M. noLLiNs, er SAME PLACE, AND PHILE'MON n.

DAY, OF NEYV YORK, N. Y.

.SPRING-Anamnese`1HosEPiPE-- GPBCWICATIGN forming part of Letters Patent*I No. 325,591, dated September 1, 1885.

' Application Bled June 19, i884. (No modei.) v

To all whom t may concern:

Bc it known that I, JosnrH A. CoULTAUs, of Brooklyn, in the county of Kings and State of New York, have invented anew and use- 5 ful Improvement in Armored Pipes and in the manufacture thereof, ol' which the following is a'full, clear, and exact description.

Hose. and other flexible pipe have heretofore been armored by wire coiled around the pipe giving additionalstrength and to prevent abrasion of the hose; but such armor, being loose on the pipe between its ends, requires refastening when the hose is cut,"and, being non-elastic, prevents expanvsion under heavy pressure or fails to ret-ain its shape.

The object of my invention is to obviate 'these lniicult'ies named; and to that end it consists in spiralfarmor formed of springsteel wire, the internal diameter ofthe spiral being smaller than the external diameter of the pipe, so that the coils form a spiral spring that binds closely at every portion of its length.

The invention further consistsin a method of windingorcoiling wire upon hose or other pipe, whereby the spiral is given its character as asphincterspring, as hereinafter described and claimed. v

Reference is to be had to the accompanying 3o drawings, forming part of this specification, in

which similar letters of reference indicate corresponding parls in all the figures. Figure -1 is a side elevation, partiallyin section, of a pipe with' the improved armor.

Fig. 2 is a cross-section of the same. Fig. 3

is a sectional plan view, and Fig. 4 a cross-scetion, of the machine employed for armoring the pipe.

A represents a hose or other pipe nia-dc of 4o rubber, leather, or other material.

B is the spiral armor wound on the pipe. The armor is formed of spring-steel wire or wire of other spring metal, so that the spiral is, not only elastic in the direction of its I length, but in every direction, so that it readily gives way when thc pipe is bent or flattened, and also allows any .slight expansion withoutthc wire becoming set. lhe internal diameter of the spiral is slightly smaller than 5o the external diameter of the pipe, so that the wire takesv firm hold on the pi pc, slightly indenting it if the pipe is made of rubber or leather. The armor thus applied forms 'a sphincter-spring, or one having coninactileI force, that grips the pipe and causes a constant inward pressure thereon by every portion of the coil, which prevents the armor from becoming misplaced or slipped when the hose is dragged, and saves the necessity of any other fastening or covering. v The pipe is also by this binding action reen forced by the full strength of the coil, whether the internal pressure be light or heavy.

Hose and other pipe armored in this manner can be cnt at any point without displae# ing the coils, and the ends of the wire do not rguire fastening,. Y,

in arinoring the hose or other pi'pe'the machine patented to me September 26, 1882, nnmbored 265,026, is employed. This machine, as shown in Figs, 3 and 4, consists, essentially, of groovcd blocks G, that receive the .pipe-A, p and of the feed-rollers D D, by which the Wire is forced inward and coiled on the pipe. This formation of a coiled spring is by a new methodthat is, by pressure applied in the direction of the feed-the, effect of which is that the coils are given the sphincter orv con- Y tract-ile feature In the case of hose-pipe' there will be a reduction in the diameter 0f 8o the pipe by the winding, and the contractile force of the coils will be suflcicnt to maintain the reduction and a constant sphinctenpressure in every part of the coils.

I am aware that hosenpipe has been covered or protected by a winding of wire r other material; but when the process of manufacturing such article is taken into consideration it will he seen that my invention is not presentia such constructions. In those eases thefeoilgir go. mustl be loose,or else fi with a soft or annealed wire, because it Wouid be .impossible tofirst form the spiral of asize to fit closely upon the pipe and then place it `-2 upon the pipe. y The apparatus by which I produce my armored hose-pipe, as shown, involves a process for making a continuons spiral sphincterspring, which is entirely different from ordinary methods for making spiral springs which Ico the hose must be woid are simply wound upon mandrels,iand when released -i'rem the mandrel will immediately expand. By my process the spring-wire is wound upon the hose by an endwise pressure given to the wire in the direction ef feed, thereby extending each successive coil as made,

so as to give to the spring the feature of the contractile oi' sphincter pressure. l'. am m t aware that a spiral sphincter-spring can be made in any other manner, or applied. to a hose-'pipe by any other ineens. Such armer, if made el spring-*wirefeould not possibly be applied so as to ling the surface of the pipe, because if wound on' the hose in the usual man-nei.` ciwinding springs the coils would yimmediatel y expand upon .their release, while if made ef soft or annealed wire the armor has not the functions of mine.

Althoughl havelicrein shown and described a mechanism -for the production of my improved spring-armor, I dc'not herein ineke claim to any part of said mechanism, es tbe same is intended by-me to form tihiesubject of a future application for a patent.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is*

1. As an improved article of manufacture, ,y I

a ilexible pipe made lwith a sphinctebspring armer. substantially as shown and described.

2. The combination, with a flexible pipe,-of y a .sphincterspring armor, substantially as' shown and described. i

3. The combination, with a flexible plpe, of a spiral-spring armor of smaller interior diauietcr than the exterior of the pipe, substantially as described, whereby said 'spring will press inte and strengthen said pipe and ren- 

